Run away from that repair shop. Sensors can be tested, you don't start replacing them unil you find the right one. I'd check the EGR valve, mass air flow sensor, oxygen sensor, idle air control valve. It might also be a fuel problem like clogged injectors or faulty fuel pressure regulator. You can test a lot of engine control components with just a volt/ohmmeter, hand vacuum pump and fuel pressure gauge. Find another repair shop.
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Thursday, May 24th, 2007 AT 7:45 PM